花生壳生物炭对水中Pb(II)的吸附

doi:10.16039/j.cnki.cn22-1249.2018.11.015

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摘要

以农业废弃物花生壳为原料制备生物炭，对其表面形貌及孔结构进行了表征，对其吸附水中Pb(II)的行为进行了研究。结果表明，花生壳生物炭对Pb(II)的吸附在120min达到平衡，吸附过程符合准二级动力学方程。Langmuir吸附模型能够很好的模拟吸附等温线，最大饱和吸附量为68.22 mg·g^-1。吸附热力学结果显示，花生壳生物炭对Pb(II)的吸附主要以化学吸附为主，升高温度有利于吸附。

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	王丽敏
	王红
	魏薇
	杨小博

关键词: 生物炭花生壳 Pb(II) 吸附

Abstract:

The biochar was prepared by using peanut shell as raw materials. The surface pattern and pore structure of peanut shell biochar were characterized and the adsorption property for Pb(II) from water onto peanut shell biochar was studied. The results indicated that the adsorption of Pb(II) on peanut shell biochar reached equilibrium within 120 min, which accorded the second-order kinetic model. The adsorption data can be fitted by Langmuir model and the maximum adsorption capacity is 68.22 mg·g^-1. The thermodynamics results showed that chemical adsorption was predominant in the adsorption process and increasing temperature is beneficial to the adsorption.

Key words: biochar peanut shell Pb(II) adsorption

出版日期: 2018-11-25 发布日期: 2018-11-25 整期出版日期: 2018-11-25

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引用本文:

王丽敏, 王红, 魏薇, 杨小博. 花生壳生物炭对水中Pb(II)的吸附 [J]. 吉林化工学院学报, 2018, 35(11): 53-57.
WANG Li-min, WANG Hong, WEI Wei, YANG Xiao-bo. Adsorption of Pb(II) from Water by Peanut Shell Biochar . Journal of Jilin Institute of Chemical Technology, 2018, 35(11): 53-57.

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https://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2018.11.015 或 https://xuebao.jlict.edu.cn/CN/Y2018/V35/I11/53

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